Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀139.7 mm to 57.1×203.2 mm, thickness 5 mm + offset 📦#10479

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Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀139.7 mm and a rectangular section with inner dimensions 57.1×203.2 mm. The shell thickness is 5 mm and the total length is 225.1 mm. The adapter has an offset of 13.5 mm along the Y axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Generation date: 2026-07-28
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀139.7 mm to 57.1×203.2 mm, thickness 5 mm + offset

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Free
  • round-to-rectangular-adapter-d_model10479-nb0_dd{id}.stl : 4.9 Mo
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
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Values for this model

This model was generated by the Round to rectangular adapter template, with the following values:
Parameter Value
#1 cylinder outer diameter 139.7 mm (5 1/2 in)
#2 cylinder inlet length 99 mm (≃3.90 in)
#3 rectangle internal length 57.1 mm (≃2 1/4 in)
#4 rectangle internal height 203.2 mm (8 in)
#5 rectangle inlet length 99 mm (≃3.90 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 13.5 mm (≃0.53 in)
#8 total length 225.1 mm (≃8 7/8 in)
#9 thickness 5 mm (≃3/16 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 129.7 mm (≃5.11 in)
illustration of the parameters
Parameter overview

  • If the chamfer option on the ends is enabled, the chamfer length is equal to half the thickness.
  • The stop at the bottom of the rectangular section has a width equal to half the thickness.

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 cylinder outer diameter diaC
#2 cylinder inlet length lentC
#3 rectangle internal length lenIR
#4 rectangle internal height heiIR
#5 rectangle inlet length lentR
#6 offset Z ofsZ
#7 offset Y ofsY
#8 total length lenT
#9 thickness thi
#10 chamfer cha

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cylinder inlet length 50 mm
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Parameter Value Unit
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cylinder inlet length 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀97 mm to 110×85 mm, thickness 5 mm (📦 #7628)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀97 mm to 110×85 mm, thickness 5 mm
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀97 mm and a rectangular section with inner dimensions 110×85 mm. The shell thickness is 5 mm and the overall length is 260 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀139.7 mm to 57.1×203.2 mm, thickness 2 mm + offset (📦 #10478)

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Round-to-Rectangular Tube Adapter STL file ⌀139.7 mm to 57.1×203.2 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 139.7 mm
cylinder inlet length 99 mm
rectangle internal length 57.1 mm
rectangle internal height 203.2 mm
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Parameter Value Unit
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 30×30 mm, thickness 3 mm (📦 #5013)

1 object(s) - format STL
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Round-to-Rectangular Tube Adapter STL 3D file ⌀177 mm to 255×89 mm, thickness 4 mm + offset (📦 #10381)

1 object(s) - format STL
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Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀177 mm and a rectangular section with internal dimensions 255×89 mm. The wall thickness is 4 mm and the overall length is 300 mm. The adapter has an offset of 1 mm along the Y axis and 1 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 177 mm
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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 180×30 mm, thickness 3 mm + offset (📦 #2002)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 180×30 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with inner dimensions 180×30 mm. The shell thickness is 3 mm and the overall length is 260 mm. The adapter has an offset of 5 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 80 mm
rectangle internal length 180 mm
rectangle internal height 30 mm
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offset Y 0 mm
total length 260 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀72 mm to 118×77 mm, thickness 4 mm + offset (📦 #3135)

1 object(s) - format STL
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Parameter Value Unit
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 120 mm
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rectangle internal length 120 mm
rectangle internal height 120 mm
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offset Z 2 mm
offset Y 2 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀195 mm to 195×30 mm, thickness 4 mm (📦 #7185)

1 object(s) - format STL
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Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀195 mm and a rectangular section with internal dimensions 195×30 mm. The shell thickness is 4 mm and the total length is 200 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 195 mm
cylinder inlet length 50 mm
rectangle internal length 195 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀128 mm to 60×110 mm, thickness 3 mm + offset (📦 #1784)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀128 mm to 60×110 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀128 mm and a rectangular section with inner dimensions 60×110 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 40 mm along the Z axis. A chamfer is present on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 128 mm
cylinder inlet length 60 mm
rectangle internal length 60 mm
rectangle internal height 110 mm
rectangle inlet length 60 mm
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offset Y 0 mm
total length 200 mm
thickness 3 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 60 mm
rectangle internal length 240 mm
rectangle internal height 100 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 106×55 mm, thickness 3 mm (📦 #5110)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 106×55 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 106×55 mm. The shell thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 75 mm
rectangle internal length 106 mm
rectangle internal height 55 mm
rectangle inlet length 75 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm (📦 #2582)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with inner dimensions 160×78 mm. The wall thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 160 mm
rectangle internal height 78 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer